Fix CMYK formatting

src/geom/paint.rs

@@ -229,7 +229,7 @@ impl CmykColor {
 
 impl Debug for CmykColor {
     fn fmt(&self, f: &mut Formatter) -> fmt::Result {
-        let g = |c| c as f64 / 255.0;
+        let g = |c| 100.0 * (c as f64 / 255.0);
         write!(
             f,
             "cmyk({:.1}%, {:.1}%, {:.1}%, {:.1}%)",

src/library/utility.rs

@@ -118,7 +118,8 @@ pub fn rgb(_: &mut EvalContext, args: &mut Args) -> TypResult<Value> {
         },
     ))
 }
-/// Create an CMYK color.
+
+/// Create a CMYK color.
 pub fn cmyk(_: &mut EvalContext, args: &mut Args) -> TypResult<Value> {
     struct Component(u8);